Weaponizing Trust Signals: Claude Code Lures and GitHub Release Payloads

A packaging error in Anthropic’s Claude Code npm release briefly exposed internal source code. This entry examines how threat actors rapidly weaponized the resulting attention, pivoting an existing AI-themed campaign to spread Vidar and GhostSocks...

CVE-2026-34451

Claude SDK for TypeScript provides access to the Claude API from server-side TypeScript or JavaScript applications. From version 0.79.0 to before version 0.81.0, the local filesystem memory tool in the Anthropic TypeScript SDK validated model-supplied paths using a string prefix check that did no...

CVE-2026-34450

The Claude SDK for Python provides access to the Claude API from Python applications. From version 0.86.0 to before version 0.87.0, the local filesystem memory tool in the Anthropic Python SDK created memory files with mode 0o666, leaving them world-readable on systems with a standard umask and...

EUVD-2026-17681

Claude SDK for Python: Memory Tool Path Validation Race Condition Allows Sandbox Escape...

Claude SDK for Python: Memory Tool Path Validation Race Condition Allows Sandbox Escape

The async local filesystem memory tool in the Anthropic Python SDK validated that model-supplied paths resolved inside the sandboxed memory directory, but then returned the unresolved path for subsequent file operations. A local attacker able to write to the memory directory could retarget a...

GHSA-5474-4W2J-MQ4C Claude SDK for TypeScript: Memory Tool Path Validation Allows Sandbox Escape to Sibling Directories

The local filesystem memory tool in the Anthropic TypeScript SDK validated model-supplied paths using a string prefix check that did not append a trailing path separator. A model steered by prompt injection could supply a crafted path that resolved to a sibling directory sharing the memory root's...

EUVD-2026-17677

Claude SDK for Python has Insecure Default File Permissions in Local Filesystem Memory Tool...

GHSA-Q5F5-3GJM-7MFM Claude SDK for Python has Insecure Default File Permissions in Local Filesystem Memory Tool

The local filesystem memory tool in the Anthropic Python SDK created memory files with mode 0o666, leaving them world-readable on systems with a standard umask and world-writable in environments with a permissive umask such as many Docker base images. A local attacker on a shared host could read...

CVE-2026-22561

Uncontrolled search path elements in Anthropic Claude for Windows installer Claude Setup.exe versions prior to 1.1.3363 allow local privilege escalation via DLL search-order hijacking. The installer loads DLLs e.g., profapi.dll from its own directory after UAC elevation, enabling arbitrary code...

Anthropic Leaks 512,000 Lines of Claude AI Code in Major Blunder

Human error exposed 512,000+ lines of Anthropic Claude AI Code, revealing KAIROS and Capybara secrets, pushing users to switch to the Native Installer...

Claude Code Source Leaked via npm Packaging Error, Anthropic Confirms

Anthropic on Tuesday confirmed that internal code for its popular artificial intelligence AI coding assistant, Claude Code, had been inadvertently released due to a human error. "No sensitive customer data or credentials were involved or exposed," an Anthropic spokesperson said in a statement...

GHSA-M8X7-R2RG-VH5G FastMCP has a Command Injection vulnerability - Gemini CLI

Server names containing shell metacharacters e.g., & can cause command injection on Windows when passed to fastmcp install claude-code or fastmcp install gemini-cli. These install paths use subprocess.run with a list argument, but on Windows the target CLIs often resolve to .cmd wrappers that are...

PYSEC-2026-2115

The Claude SDK for Python provides access to the Claude API from Python applications. From version 0.86.0 to before version 0.87.0, the async local filesystem memory tool in the Anthropic Python SDK validated that model-supplied paths resolved inside the sandboxed memory directory, but then...

CVE-2026-34452

The Claude SDK for Python provides access to the Claude API from Python applications. From version 0.86.0 to before version 0.87.0, the async local filesystem memory tool in the Anthropic Python SDK validated that model-supplied paths resolved inside the sandboxed memory directory, but then...

CVE-2026-34451

Claude SDK for TypeScript provides access to the Claude API from server-side TypeScript or JavaScript applications. From version 0.79.0 to before version 0.81.0, the local filesystem memory tool in the Anthropic TypeScript SDK validated model-supplied paths using a string prefix check that did no...

PYSEC-2026-2114

The Claude SDK for Python provides access to the Claude API from Python applications. From version 0.86.0 to before version 0.87.0, the local filesystem memory tool in the Anthropic Python SDK created memory files with mode 0o666, leaving them world-readable on systems with a standard umask and...

CVE-2026-34451 Claude SDK for TypeScript: Memory Tool Path Validation Allows Sandbox Escape to Sibling Directories

Claude SDK for TypeScript provides access to the Claude API from server-side TypeScript or JavaScript applications. From version 0.79.0 to before version 0.81.0, the local filesystem memory tool in the Anthropic TypeScript SDK validated model-supplied paths using a string prefix check that did no...

CVE-2026-34451 Claude SDK for TypeScript: Memory Tool Path Validation Allows Sandbox Escape to Sibling Directories

Claude SDK for TypeScript provides access to the Claude API from server-side TypeScript or JavaScript applications. From version 0.79.0 to before version 0.81.0, the local filesystem memory tool in the Anthropic TypeScript SDK validated model-supplied paths using a string prefix check that did no...

CVE-2026-34451

Claude SDK for TypeScript provides access to the Claude API from server-side TypeScript or JavaScript applications. From version 0.79.0 to before version 0.81.0, the local filesystem memory tool in the Anthropic TypeScript SDK validated model-supplied paths using a string prefix check that did no...

CVE-2026-34451

CVE-2026-34451 — Claude SDK for TypeScript (Anthropic) . The local filesystem memory tool in the Anthropic TypeScript SDK (server-side) from version 0.79.0 up to before 0.81.0 validates model-supplied paths via a string prefix check that omits a trailing path separator, allowing a crafted path to...